IL272362B - Use of extended exposure time periods to locate error range and ease in an exposure and light spread system - Google Patents
Use of extended exposure time periods to locate error range and ease in an exposure and light spread systemInfo
- Publication number
- IL272362B IL272362B IL272362A IL27236220A IL272362B IL 272362 B IL272362 B IL 272362B IL 272362 A IL272362 A IL 272362A IL 27236220 A IL27236220 A IL 27236220A IL 272362 B IL272362 B IL 272362B
- Authority
- IL
- Israel
- Prior art keywords
- detection
- lidar
- mitigation
- ranging
- extended
- Prior art date
Links
- 238000001514 detection method Methods 0.000 title 3
- 230000000116 mitigating effect Effects 0.000 title 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
- G01S7/483—Details of pulse systems
- G01S7/486—Receivers
- G01S7/4865—Time delay measurement, e.g. time-of-flight measurement, time of arrival measurement or determining the exact position of a peak
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
- G01S7/491—Details of non-pulse systems
- G01S7/4912—Receivers
- G01S7/4913—Circuits for detection, sampling, integration or read-out
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
- G01S17/06—Systems determining position data of a target
- G01S17/08—Systems determining position data of a target for measuring distance only
- G01S17/10—Systems determining position data of a target for measuring distance only using transmission of interrupted, pulse-modulated waves
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
- G01S17/06—Systems determining position data of a target
- G01S17/42—Simultaneous measurement of distance and other co-ordinates
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/88—Lidar systems specially adapted for specific applications
- G01S17/89—Lidar systems specially adapted for specific applications for mapping or imaging
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/88—Lidar systems specially adapted for specific applications
- G01S17/93—Lidar systems specially adapted for specific applications for anti-collision purposes
- G01S17/931—Lidar systems specially adapted for specific applications for anti-collision purposes of land vehicles
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
- G01S7/491—Details of non-pulse systems
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D1/00—Control of position, course, altitude or attitude of land, water, air or space vehicles, e.g. using automatic pilots
- G05D1/02—Control of position or course in two dimensions
- G05D1/021—Control of position or course in two dimensions specially adapted to land vehicles
- G05D1/0212—Control of position or course in two dimensions specially adapted to land vehicles with means for defining a desired trajectory
- G05D1/0214—Control of position or course in two dimensions specially adapted to land vehicles with means for defining a desired trajectory in accordance with safety or protection criteria, e.g. avoiding hazardous areas
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D1/00—Control of position, course, altitude or attitude of land, water, air or space vehicles, e.g. using automatic pilots
- G05D1/02—Control of position or course in two dimensions
- G05D1/021—Control of position or course in two dimensions specially adapted to land vehicles
- G05D1/0257—Control of position or course in two dimensions specially adapted to land vehicles using a radar
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
- G01S7/483—Details of pulse systems
- G01S7/484—Transmitters
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Electromagnetism (AREA)
- Aviation & Aerospace Engineering (AREA)
- Automation & Control Theory (AREA)
- Optical Radar Systems And Details Thereof (AREA)
- Measurement Of Optical Distance (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15/665,591 US10627492B2 (en) | 2017-08-01 | 2017-08-01 | Use of extended detection periods for range aliasing detection and mitigation in a light detection and ranging (LIDAR) system |
PCT/US2018/036227 WO2019027567A1 (en) | 2017-08-01 | 2018-06-06 | USE OF EXTENDED DETECTION PERIODS FOR DETECTION AND MITIGATION OF REACH FOLDING IN A LIGHT DETECTION AND LOCATION SYSTEM (LIDAR) |
Publications (2)
Publication Number | Publication Date |
---|---|
IL272362A IL272362A (en) | 2020-03-31 |
IL272362B true IL272362B (en) | 2021-06-30 |
Family
ID=65230976
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IL272362A IL272362B (en) | 2017-08-01 | 2020-01-30 | Use of extended exposure time periods to locate error range and ease in an exposure and light spread system |
IL280996A IL280996B (en) | 2017-08-01 | 2021-02-21 | Use of extended exposure time periods to locate error range and ease in an exposure and light spread system |
IL289451A IL289451B2 (en) | 2017-08-01 | 2021-12-28 | Use of extended exposure time periods to locate error range and ease in an exposure and light spread system |
Family Applications After (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IL280996A IL280996B (en) | 2017-08-01 | 2021-02-21 | Use of extended exposure time periods to locate error range and ease in an exposure and light spread system |
IL289451A IL289451B2 (en) | 2017-08-01 | 2021-12-28 | Use of extended exposure time periods to locate error range and ease in an exposure and light spread system |
Country Status (10)
Country | Link |
---|---|
US (4) | US10627492B2 (ko) |
EP (2) | EP4375703A1 (ko) |
JP (2) | JP7059354B2 (ko) |
KR (1) | KR102190700B1 (ko) |
CN (2) | CN113625255B (ko) |
AU (3) | AU2018309582B2 (ko) |
CA (1) | CA3071411A1 (ko) |
IL (3) | IL272362B (ko) |
SG (1) | SG11202000827VA (ko) |
WO (1) | WO2019027567A1 (ko) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10627492B2 (en) * | 2017-08-01 | 2020-04-21 | Waymo Llc | Use of extended detection periods for range aliasing detection and mitigation in a light detection and ranging (LIDAR) system |
WO2019243038A1 (en) * | 2018-06-22 | 2019-12-26 | Ams Ag | Using time-of-flight and pseudo-random bit sequences to measure distance to object |
US11153010B2 (en) | 2019-07-02 | 2021-10-19 | Waymo Llc | Lidar based communication |
US11556000B1 (en) | 2019-08-22 | 2023-01-17 | Red Creamery Llc | Distally-actuated scanning mirror |
CN110749898B (zh) * | 2019-10-18 | 2022-05-27 | 深圳奥锐达科技有限公司 | 一种激光雷达测距系统及其测距方法 |
EP3995922B1 (en) | 2020-11-10 | 2023-08-23 | Yandex Self Driving Group Llc | Method and system for providing perception scan data for controlling a self-driving vehicle |
US12032060B2 (en) * | 2021-01-25 | 2024-07-09 | GM Global Technology Operations LLC | Ambiguity mitigation based on common field of view of radar systems |
US11500093B2 (en) | 2021-03-26 | 2022-11-15 | Aeye, Inc. | Hyper temporal lidar using multiple matched filters to determine target obliquity |
US11686845B2 (en) * | 2021-03-26 | 2023-06-27 | Aeye, Inc. | Hyper temporal lidar with controllable detection intervals based on regions of interest |
CN115184946A (zh) * | 2021-04-02 | 2022-10-14 | 华为技术有限公司 | 基于雷达的距离检测方法、装置、雷达及终端 |
CN115790607B (zh) * | 2023-01-31 | 2023-05-12 | 南京航空航天大学 | 一种基于短弧历史数据的非合作目标机动特征检测方法 |
Family Cites Families (48)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61149879A (ja) * | 1984-12-24 | 1986-07-08 | Meisei Electric Co Ltd | 受信パルス誤検出防止装置 |
JP3110562B2 (ja) * | 1992-07-20 | 2000-11-20 | 富士通テン株式会社 | 車間距離測定装置 |
JPH07229965A (ja) * | 1994-02-22 | 1995-08-29 | Nikon Corp | 距離測定装置 |
US5442359A (en) | 1994-06-30 | 1995-08-15 | Unisys Corporation | Apparatus and method for mitigating range-doppler ambiguities in pulse-doppler radars |
JP3763000B2 (ja) | 2003-09-17 | 2006-04-05 | 防衛庁技術研究本部長 | レーダ装置 |
JP4161910B2 (ja) | 2004-01-28 | 2008-10-08 | 株式会社デンソー | 距離画像データ生成装置及び生成方法,プログラム |
EP1860462A1 (de) * | 2006-05-23 | 2007-11-28 | Leica Geosystems AG | Distanzmessverfahren und Distanzmesser zur Erfassung der räumlichen Abmessung eines Zieles |
JP2007322331A (ja) | 2006-06-02 | 2007-12-13 | Mitsubishi Electric Corp | レーダ装置 |
US8629976B2 (en) | 2007-10-02 | 2014-01-14 | Microsoft Corporation | Methods and systems for hierarchical de-aliasing time-of-flight (TOF) systems |
US7746449B2 (en) | 2007-11-14 | 2010-06-29 | Rosemount Aerospace Inc. | Light detection and ranging system |
DE102008031681A1 (de) | 2008-07-04 | 2010-01-14 | Eads Deutschland Gmbh | LIDAR-Verfahren zur Messung von Geschwindigkeiten und LIDAR-Vorrichtung mit zeitgesteuerter Detektion |
JP5200820B2 (ja) * | 2008-09-25 | 2013-06-05 | カシオ計算機株式会社 | 撮像装置及び撮像方法、画像処理プログラム |
US8368876B1 (en) | 2008-10-17 | 2013-02-05 | Odyssey Space Research, L.L.C. | Calibration system and method for imaging flash LIDAR systems |
US10571571B2 (en) | 2010-11-12 | 2020-02-25 | Texas Instruments Incorporated | Method and apparatus for controlling time of flight confidence map based depth noise and depth coverage range |
CN102073051A (zh) * | 2010-11-19 | 2011-05-25 | 厦门大学 | 激光多脉冲扩时测距装置 |
KR102586396B1 (ko) | 2011-03-10 | 2023-10-10 | 사이오닉스, 엘엘씨 | 3차원 센서, 시스템, 및 관련 방법 |
JP2012215521A (ja) | 2011-04-01 | 2012-11-08 | Denso Corp | レーザレーダ装置 |
JP2013076645A (ja) | 2011-09-30 | 2013-04-25 | Stanley Electric Co Ltd | 距離画像生成装置および距離画像生成方法 |
WO2013104717A1 (en) * | 2012-01-10 | 2013-07-18 | Softkinetic Sensors Nv | Improvements in or relating to the processing of time-of-flight signals |
US9383753B1 (en) | 2012-09-26 | 2016-07-05 | Google Inc. | Wide-view LIDAR with areas of special attention |
US9448110B2 (en) | 2012-09-27 | 2016-09-20 | Northrop Grumman Systems Corporation | Three-dimensional hyperspectral imaging systems and methods using a light detection and ranging (LIDAR) focal plane array |
US9097800B1 (en) * | 2012-10-11 | 2015-08-04 | Google Inc. | Solid object detection system using laser and radar sensor fusion |
US9602807B2 (en) | 2012-12-19 | 2017-03-21 | Microsoft Technology Licensing, Llc | Single frequency time of flight de-aliasing |
DE102013003186B3 (de) * | 2013-02-26 | 2014-05-08 | Audi Ag | Verfahren zur Ermittlung eines Abstands eines Objekts zu einem Kraftfahrzeug und PMD-Sensor |
US9110169B2 (en) | 2013-03-08 | 2015-08-18 | Advanced Scientific Concepts, Inc. | LADAR enabled impact mitigation system |
EP2846173B1 (en) | 2013-09-09 | 2019-06-19 | Trimble AB | Ambiguity compensation in time-of-flight ranging |
WO2015087380A1 (ja) * | 2013-12-09 | 2015-06-18 | 三菱電機株式会社 | レーザレーダ装置 |
US8886387B1 (en) | 2014-01-07 | 2014-11-11 | Google Inc. | Estimating multi-vehicle motion characteristics by finding stable reference points |
JP6207407B2 (ja) * | 2014-01-17 | 2017-10-04 | オムロンオートモーティブエレクトロニクス株式会社 | レーザレーダ装置、物体検出方法、及び、プログラム |
WO2015127954A1 (de) * | 2014-02-25 | 2015-09-03 | Alfred Kärcher Gmbh & Co. Kg | Verfahren zum andocken eines bodenbearbeitungsgerätes an einer basisstation und bodenbearbeitungssystem |
KR102173994B1 (ko) * | 2014-03-18 | 2020-11-04 | 주식회사 만도 | 차량용 레이더의 조정 방법 및 제어 장치 |
CN103954971B (zh) * | 2014-05-22 | 2016-03-30 | 武汉大学 | 机载彩色三维扫描激光雷达 |
US10419703B2 (en) * | 2014-06-20 | 2019-09-17 | Qualcomm Incorporated | Automatic multiple depth cameras synchronization using time sharing |
JP6410258B2 (ja) | 2015-03-02 | 2018-10-24 | 株式会社トプコン | 光波距離計 |
US9933514B1 (en) * | 2015-03-12 | 2018-04-03 | The Boeing Company | LADAR systems with dynamic receiver filters |
US10126411B2 (en) | 2015-03-13 | 2018-11-13 | Continental Advanced Lidar Solutions Us, Llc. | Beam steering LADAR sensor |
EP3070494B1 (de) | 2015-03-18 | 2021-04-28 | Leica Geosystems AG | Elektrooptisches distanzmessverfahren und ebensolcher distanzmesser |
FR3034513A1 (ko) | 2015-04-02 | 2016-10-07 | Stmicroelectronics (Grenoble 2) Sas | |
US20160341848A1 (en) * | 2015-05-22 | 2016-11-24 | Satoshi Nakamura | Object detection apparatus, object removement control system, object detection method, and storage medium storing object detection program |
JP2017009339A (ja) | 2015-06-18 | 2017-01-12 | 株式会社リコー | センサ、センシング装置及び距離計測方法 |
KR102392999B1 (ko) * | 2015-07-13 | 2022-05-02 | 현대모비스 주식회사 | 센서의 시야 범위를 조정하는 시스템 및 그 방법 |
JP6701199B2 (ja) | 2015-07-31 | 2020-05-27 | パナソニック株式会社 | 測距撮像装置 |
EP3159711A1 (en) | 2015-10-23 | 2017-04-26 | Xenomatix NV | System and method for determining a distance to an object |
EP3396410A4 (en) | 2015-12-21 | 2019-08-21 | Koito Manufacturing Co., Ltd. | IMAGE ACQUISITION DEVICE FOR VEHICLES, CONTROL DEVICE, VEHICLE HAVING IMAGE ACQUISITION DEVICE FOR VEHICLES AND CONTROL DEVICE, AND IMAGE ACQUISITION METHOD FOR VEHICLES |
EP3433578B8 (en) * | 2016-03-21 | 2021-06-16 | Velodyne Lidar USA, Inc. | Lidar based 3-d imaging with varying illumination intensity |
JP6261681B2 (ja) * | 2016-08-05 | 2018-01-17 | ソフトキネティック センサーズ エヌブイ | タイムオブフライト信号の処理における又はこれに関する改良 |
US10754033B2 (en) | 2017-06-30 | 2020-08-25 | Waymo Llc | Light detection and ranging (LIDAR) device range aliasing resilience by multiple hypotheses |
US10627492B2 (en) | 2017-08-01 | 2020-04-21 | Waymo Llc | Use of extended detection periods for range aliasing detection and mitigation in a light detection and ranging (LIDAR) system |
-
2017
- 2017-08-01 US US15/665,591 patent/US10627492B2/en active Active
-
2018
- 2018-06-06 EP EP24156948.2A patent/EP4375703A1/en active Pending
- 2018-06-06 EP EP18841748.9A patent/EP3649482B1/en active Active
- 2018-06-06 AU AU2018309582A patent/AU2018309582B2/en not_active Ceased
- 2018-06-06 CN CN202110766089.2A patent/CN113625255B/zh active Active
- 2018-06-06 CN CN201880061950.1A patent/CN111149013B/zh active Active
- 2018-06-06 CA CA3071411A patent/CA3071411A1/en active Pending
- 2018-06-06 SG SG11202000827VA patent/SG11202000827VA/en unknown
- 2018-06-06 KR KR1020207006014A patent/KR102190700B1/ko active IP Right Grant
- 2018-06-06 WO PCT/US2018/036227 patent/WO2019027567A1/en active Application Filing
- 2018-06-06 JP JP2020504710A patent/JP7059354B2/ja active Active
-
2020
- 2020-01-30 IL IL272362A patent/IL272362B/en active IP Right Grant
- 2020-04-17 US US16/851,987 patent/US11415680B2/en active Active
- 2020-08-10 AU AU2020217306A patent/AU2020217306B2/en not_active Ceased
-
2021
- 2021-02-21 IL IL280996A patent/IL280996B/en unknown
- 2021-12-28 IL IL289451A patent/IL289451B2/en unknown
-
2022
- 2022-04-13 AU AU2022202436A patent/AU2022202436A1/en not_active Abandoned
- 2022-04-13 JP JP2022066249A patent/JP2022105031A/ja active Pending
- 2022-06-14 US US17/839,676 patent/US11927697B2/en active Active
-
2024
- 2024-01-15 US US18/412,820 patent/US20240151829A1/en active Pending
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Legal Events
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FF | Patent granted |